<div class="apiDetail">
    <div>
        <h2><span>Function(event, treeId, treeNode)</span><span class="path">setting.callback.</span>onCheck</h2>

        <h3>Overview<span class="h3_info">[ depends on <span
                class="highlight_green">jquery.ztree.excheck</span> js ]</span></h3>

        <div class="desc">
            <p></p>

            <div class="longdesc">
                <p>Used to capture the check or uncheck event when check or uncheck the checkbox and radio.</p>

                <p class="highlight_red">If you set 'setting.callback.beforeCheck',and return false, zTree will not
                    change check state, and will not trigger the 'onCheck' callback.</p>

                <p>Default: null</p>
            </div>
        </div>
        <h3>Function Parameter Descriptions</h3>

        <div class="desc">
            <h4><b>event</b><span>js event Object</span></h4>

            <p>event Object</p>
            <h4 class="topLine"><b>treeId</b><span>String</span></h4>

            <p>zTree unique identifier: <b class="highlight_red">treeId</b>.</p>
            <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>

            <p>JSON data object of the node which is checked or unchecked</p>
        </div>
        <h3>Examples of setting & function</h3>
        <h4>1. When check or uncheck the checkbox and radio, alert info about 'tId' and 'name' and 'checked'.</h4>
	<pre xmlns=""><code>function myOnCheck(event, treeId, treeNode) {
        alert(treeNode.tId + ", " + treeNode.name + "," + treeNode.checked);
        };
        var setting = {
        callback: {
        onCheck: myOnCheck
        }
        };
        ......</code></pre>
    </div>
</div>